the ESP32 needs to find the sensor, connect to it, select the right service, and listen for the notifications containing the data. The data is then converted to RPM and displayed on a small OLED ...

The device comes powered by an ESP32-S3 processor and supports Wi-Fi ... developer Ashtf has devised an interesting solution. He has a smaller OLED display on which anything you type shows up ...

In a recent article in Elektor magazine, [Clemens Valens] describes the construction and software for an ESP32 walkie-talkie system that uses ESP-NOW for the wireless connection between units ...

But this model is powered by a modern, low-power ESP32-S3 processor (with two low ... Ashftf has also added a tiny OLED screen and come up with a hybrid typing system: the little OLED screen ...